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For Nvidia 50 series (Blackwell) GPUs, please refer to the System Requirements section to ensure your system meets the requirements for ComfyUI.

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Clone the repository

git clone git@github.com:comfyanonymous/ComfyUI.git
More info on git clone.
If you have not installed Microsoft Visual C++ Redistributable, please install it here.

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Install Dependencies

  1. Install Miniconda. This will help you install the correct versions of Python and other libraries needed by ComfyUI. Create an environment with Conda. 
    conda create -n comfyenv
conda activate comfyenv
  2. Install GPU Dependencies 
    conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch -c nvidia
    Alternatively, you can install the nightly version of PyTorch.
    Install Nightly version (might be more risky)
    conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch-nightly -c nvidia

    pip3 install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.0
    Alternatively, you can install the nightly version of PyTorch.
    Install Nightly version (might be more risky)
    pip3 install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.0

    conda install pytorch-nightly::pytorch torchvision torchaudio -c pytorch-nightly

  3. cd ComfyUI
pip install -r requirements.txt
  4. Start the application 
    cd ComfyUI
python main.py